Pulsation analysis of the high amplitude δ Scuti star CW Serpentis

Time-series photometric observations were made for the high amplitudeδScuti star CW Ser between 2011 and 2012 at the Xinglong Station of National Astronomical Observatories,Chinese Academy of Sciences.After performing the frequency analysis of the light curves,we confirmed the fundamental frequency...

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Bibliographic Details
Published in:Research in astronomy and astrophysics 2013-10, Vol.13 (10), p.1181-1188
Main Authors: Niu, Jia-Shu, Fu, Jian-Ning, Zong, Wei-Kai
Format: Article
Language:English
Subjects:
Amplitudes
Astronomical observatories
Astronomy
Photometry
Pulsation
Resonant frequency
Stars
Stations
国家天文台
时间序列
明星
测光观测
脉动分析
频率分析
高振幅
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Summary:Time-series photometric observations were made for the high amplitudeδScuti star CW Ser between 2011 and 2012 at the Xinglong Station of National Astronomical Observatories,Chinese Academy of Sciences.After performing the frequency analysis of the light curves,we confirmed the fundamental frequency of f=5.28677 c d 1,together with seven harmonics of the fundamental frequency,which are newly detected.No additional frequencies were detected.The O C diagram,produced with the 21 newly determined times of maximum light combined with those provided in the literature,helps to obtain a new ephemeris formula of the times of maximum light with the pulsation period of 0.189150355±0.000000003 d.
ISSN:1674-4527
2397-6209
DOI:10.1088/1674-4527/13/10/004